Re: [RFC] x86/HVM: stdvga caching mode

2024-09-05 Thread Jan Beulich
On 05.09.2024 12:41, Andrew Cooper wrote: > On 05/09/2024 11:33 am, Jan Beulich wrote: >> Hello, >> >> I happened to spot a ~14y old revert of the crucial hunk of the ~16y old >> 551ceee97513 ("x86, hvm: stdvga cache always on") in our patch set, >> supposedly to deal with text mode corruption when

Re: [RFC] x86/HVM: stdvga caching mode

2024-09-05 Thread Paul Durrant
On 05/09/2024 11:41, Andrew Cooper wrote: STDVGA caching is primarily (exclusively?) an optimisation for Windows XP. I think it was originally for Win2K (white splash screen). Paul

Re: [RFC] x86/HVM: stdvga caching mode

2024-09-05 Thread Andrew Cooper
On 05/09/2024 11:33 am, Jan Beulich wrote: > Hello, > > I happened to spot a ~14y old revert of the crucial hunk of the ~16y old > 551ceee97513 ("x86, hvm: stdvga cache always on") in our patch set, > supposedly to deal with text mode corruption when Linux is booted without > any "vga=" option, and

[RFC] x86/HVM: stdvga caching mode

2024-09-05 Thread Jan Beulich
Hello, I happened to spot a ~14y old revert of the crucial hunk of the ~16y old 551ceee97513 ("x86, hvm: stdvga cache always on") in our patch set, supposedly to deal with text mode corruption when Linux is booted without any "vga=" option, and when - after the GUI is up - the console is switched